Feature: added support for influence factor in IK constraint.

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10854 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/blender/com/jme3/scene/plugins/blender/constraints/definitions/ConstraintDefinitionIK.java

@@ -40,7 +40,7 @@ public class ConstraintDefinitionIK extends ConstraintDefinition {
     
     @Override
     public void bake(Space ownerSpace, Space targetSpace, Transform targetTransform, float influence) {
-        if (needToCompute) {
+        if (needToCompute && influence != 0) {
             ConstraintHelper constraintHelper = blenderContext.getHelper(ConstraintHelper.class);
             BoneContext[] boneContexts = this.getBones();
             float b = chainLength;
@@ -73,6 +73,8 @@ public class ConstraintDefinitionIK extends ConstraintDefinition {
                 } else {
                     theta = vectorA.angleBetween(vectorC) - FastMath.acos(-(b * b - a * a - c * c) / (2 * a * c));
                 }
+                
+                theta *= influence;
 
                 if (theta != 0) {
                     Vector3f vectorR = vectorA.cross(vectorC);